So was what happened after Q1 really a short squeeze? In the VW case the price came back down after the squeeze was over. There wasn't really a retreat in TSLA price since we have been breaking ATH's every month since May. Or doesn't it have to follow that patern?
It's just a longer term short squeeze.
The combination of TSLA momentum, Model S's success, Elon's trilogy, various analysts, and the DOJ loan repayment created a tremendous amount of press, which attracts long-term buy-and-hold investors. (Such as those on TMC). This reduces the available shares, which partially drives up the price.
At the same time, shorts are slowly but steadily exiting the stock because at some point it's no fun anymore to lose money just to prove a point. This also drives the available shares down and again the price up. However, unlike VW, TSLA hasn't reached that critical point where there is literally no shares available for trading anymore. VW started off at a point close to that, TSLA came from far behind due to a HUGE open short interest.
If it ever reaches such a critical point (which I think happens if open short interest ever drops below 12 million AND shorts at that point feel they don't want to risk selling back in), you may see a VW-like rapid up and down spike over a very short period of time.
Or the short interest may continue to unwind orderly beyond the point of there being no available shares to buy, but I don't think so. You're racing a short that's running for his life against a fund manager that just made a fat profit and can lazily rebalance his overweight assets in order to free up some shares. The short is much more desperate in that situation and will just try and outrun the short next to him instead of trying to outrun the bear.
One thing that COULD make it be an orderly unwind is if the shorts happen to own and then exercise shares that are held by covered calls. But covered calls are mostly going to be held by speculative longs, which again is just backed by another short, which in turn has to go find real shares to buy. But who knows, maybe enough covered calls are held by institutions and long term investors (boo) so that by exercising all of them you can cause long-term ownership to drop enough to restore a decent float. Again, I doubt it. For one thing there is a LOT of technical trading going on, and lots of multi-contract positions e.g. a bull call spread, have no direct backing shares.
So for now, all that's really standing beyond you and any of this happening is that new "wiser" shorts are opening positions that older disillusioned shorts are buying to close. But that makes the whole thing a pyramid, and it's slowly coming to an end.